SJA Solar LLC-Solterra Monastery CSG
Worcester County, Massachusetts · EIA plant ID 60391 · Operator: SJA Solar, LLC
Nameplate15MWSummer 15 MW
Generators1in service
Net generation24GWh12 mo to Dec 2025
Capacity factor18%solar units, summer MW
Heat rate—thermal plants only
First online2016
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), solar units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2016 | 0.6 | 3.7% | — |
| 2017 | 23.2 | 13.2% | — |
| 2018 | 22.1 | 12.5% | — |
| 2019 | 23.4 | 13.3% | — |
| 2020 | 25.2 | 19.6% | — |
| 2021 | 26.3 | 20.4% | — |
| 2022 | 74.2 | 57.6% | — |
| 2023 | 72.5 | 56.3% | — |
| 2024 | 27.3 | 21.1% | — |
| 2025 | 23.6 | 18.3% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| SJAPV | Solar Photovoltaic | PV | 14.7 | 14.7 | Dec 2016 | Operating | — | coming soon |
Owner / operator
Operator: SJA Solar, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| SJA Solar, LLC | 100.0% | 15 MW |
Nearby plants
Within 80 km.
| ZPD-PT Solar Project 2017-044 LLC CSG | 1 MW | 0.6 km |
| Spencer Solar | 2 MW | 2.6 km |
| Wilson Solar | 2 MW | 3.2 km |
| North Brookfield | 3 MW | 3.7 km |
| Blair Wire Village Solar, LLC CSG | 1 MW | 3.9 km |
| Woodchuck Solar, LLC CSG | 1 MW | 3.9 km |